Matching (9) Match items in column A to column B

Column a Column b
1.
A.
Mantle
2.
B.
Dense
3.
C.
Core
4.
D.
Crust
5.
E.
Outer Core
6.
F.
Lithosphere
7.
G.
Inner Core
8.
H.
Asthenosphere
9.
I.
Convection